Superknife?

Hey Guys.

Firstly. Move If in Wrong Section

Ok.
Well Recently I Have Come Across A Few People That have been Using a "Superknife" You Can Call is Something Else, or Tell me the Real Name if you Know. Basically, it makes Their Knife Slash Like 10 Times a Second, so he Kills everyone REALLY Easily.

Can Someone Explain.

Also, This Hack is NOT Patched. It is Obviously not because I Played With a Guy that Had It This Morning

Thanks,

Trunky :

He is speed hacking?

Edit: Trunky was your post count reset?

Double Edit: Trunky your avatar hurts my eyes if i stare to long